| 2020 |
$31,316 |
$6,779 (%22) |
$6,997 (%22) |
| 2018 |
$28,149 |
$8,769 (%31) |
$8,959 (%32) |
| 2016 |
$33,587 |
$3,421 (%10) |
$10,546 (%31) |
| 2014 |
$8,225 |
$1,500 (%18) |
$5,850 (%71) |
| 2012 |
$14,549 |
$3,766 (%26) |
$9,283 (%64) |
| 2010 |
$9,610 |
$2,450 (%25) |
$5,660 (%59) |
| 2008 |
$20,669 |
$1,800 (%9) |
$14,357 (%69) |
| 2006 |
$9,465 |
$700 (%7) |
$7,765 (%82) |
| 2004 |
$11,001 |
$950 (%9) |
$9,010 (%82) |
| 2002 |
$800 |
$0 (%0) |
$0 (%0) |
| 2000 |
$0 |
$0 (%0) |
$0 (%0) |
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